If A earns $$ {33{1\over 3} \%}$$  more than B, how much percent does B earn less than A?

A basket contains 350 eggs. If 12% of the eggs are rotten, how many eggs are good enough to be sold?

P is 20 percent more than Q and Q is 30 percent less than R. If P is 420, then What is the value of R?

If 20% of (A + B) = 30% of (A − B), then what percentage of B is equal to A?

If A is equal to 20% of B and B is equal to 25% of C; then what percent of C is equal to A?

A student has to score 33% marks to pass. He gets 117 marks and fails by 81 marks. Find the student’s marks percentage?

A reduction of 20% in the price of sugar enables a housewife to purchase 6 kg. more for Rs. 240. What is the original price per kg. of sugar?

In a factory, the production of cycles rose to 48,400 from 40,000 in 2 years. The rate of growth per annum is?